/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe032_tso.opt.i
--------------------------------------------------------------------------------
This is Ultimate 0.1.25-b981219
[2020-04-17 18:17:13,525 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-04-17 18:17:13,528 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-04-17 18:17:13,547 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-04-17 18:17:13,547 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-04-17 18:17:13,549 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-04-17 18:17:13,551 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-04-17 18:17:13,561 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-04-17 18:17:13,564 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-04-17 18:17:13,567 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
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[2020-04-17 18:17:13,571 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-04-17 18:17:13,573 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-04-17 18:17:13,575 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-04-17 18:17:13,576 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-04-17 18:17:13,578 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-04-17 18:17:13,580 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-04-17 18:17:13,581 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-04-17 18:17:13,586 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-04-17 18:17:13,590 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-04-17 18:17:13,594 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-04-17 18:17:13,595 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-04-17 18:17:13,595 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-04-17 18:17:13,597 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2020-04-17 18:17:13,598 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-04-17 18:17:13,599 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-04-17 18:17:13,601 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
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[2020-04-17 18:17:13,602 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
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[2020-04-17 18:17:13,606 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
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[2020-04-17 18:17:13,607 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2020-04-17 18:17:13,609 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-04-17 18:17:13,610 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2020-04-17 18:17:13,644 INFO L113 SettingsManager]: Loading preferences was successful
[2020-04-17 18:17:13,645 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-04-17 18:17:13,646 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-04-17 18:17:13,646 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2020-04-17 18:17:13,646 INFO L138 SettingsManager]: * Use SBE=true
[2020-04-17 18:17:13,647 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-04-17 18:17:13,647 INFO L138 SettingsManager]: * sizeof long=4
[2020-04-17 18:17:13,647 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-04-17 18:17:13,647 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-04-17 18:17:13,647 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-04-17 18:17:13,648 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-04-17 18:17:13,648 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-04-17 18:17:13,648 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-04-17 18:17:13,650 INFO L138 SettingsManager]: * sizeof long double=12
[2020-04-17 18:17:13,650 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-04-17 18:17:13,650 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-04-17 18:17:13,651 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-04-17 18:17:13,651 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-04-17 18:17:13,651 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2020-04-17 18:17:13,652 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-04-17 18:17:13,652 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-04-17 18:17:13,652 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-04-17 18:17:13,652 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-04-17 18:17:13,652 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2020-04-17 18:17:13,652 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-04-17 18:17:13,653 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2020-04-17 18:17:13,653 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-04-17 18:17:13,653 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-04-17 18:17:13,653 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2020-04-17 18:17:13,654 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2020-04-17 18:17:13,931 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2020-04-17 18:17:13,950 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-04-17 18:17:13,953 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-04-17 18:17:13,955 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-04-17 18:17:13,955 INFO L275 PluginConnector]: CDTParser initialized
[2020-04-17 18:17:13,956 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe032_tso.opt.i
[2020-04-17 18:17:14,027 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/510153db0/8853a4a2a49446a68975ed0dfadbc768/FLAG8aad48f9a
[2020-04-17 18:17:14,597 INFO L306 CDTParser]: Found 1 translation units.
[2020-04-17 18:17:14,598 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe032_tso.opt.i
[2020-04-17 18:17:14,612 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/510153db0/8853a4a2a49446a68975ed0dfadbc768/FLAG8aad48f9a
[2020-04-17 18:17:14,855 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/510153db0/8853a4a2a49446a68975ed0dfadbc768
[2020-04-17 18:17:14,865 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-04-17 18:17:14,888 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2020-04-17 18:17:14,890 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-04-17 18:17:14,890 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-04-17 18:17:14,894 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-04-17 18:17:14,895 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 06:17:14" (1/1) ...
[2020-04-17 18:17:14,898 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b6abf99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:17:14, skipping insertion in model container
[2020-04-17 18:17:14,898 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 06:17:14" (1/1) ...
[2020-04-17 18:17:14,905 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-04-17 18:17:14,959 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-04-17 18:17:15,511 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-04-17 18:17:15,523 INFO L203 MainTranslator]: Completed pre-run
[2020-04-17 18:17:15,585 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-04-17 18:17:15,670 INFO L208 MainTranslator]: Completed translation
[2020-04-17 18:17:15,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:17:15 WrapperNode
[2020-04-17 18:17:15,671 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-04-17 18:17:15,672 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2020-04-17 18:17:15,672 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2020-04-17 18:17:15,672 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2020-04-17 18:17:15,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:17:15" (1/1) ...
[2020-04-17 18:17:15,713 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:17:15" (1/1) ...
[2020-04-17 18:17:15,736 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2020-04-17 18:17:15,736 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-04-17 18:17:15,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-04-17 18:17:15,736 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-04-17 18:17:15,746 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:17:15" (1/1) ...
[2020-04-17 18:17:15,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:17:15" (1/1) ...
[2020-04-17 18:17:15,750 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:17:15" (1/1) ...
[2020-04-17 18:17:15,750 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:17:15" (1/1) ...
[2020-04-17 18:17:15,758 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:17:15" (1/1) ...
[2020-04-17 18:17:15,761 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:17:15" (1/1) ...
[2020-04-17 18:17:15,763 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:17:15" (1/1) ...
[2020-04-17 18:17:15,767 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-04-17 18:17:15,767 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-04-17 18:17:15,767 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-04-17 18:17:15,767 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-04-17 18:17:15,768 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:17:15" (1/1) ...
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-04-17 18:17:15,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-04-17 18:17:15,835 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2020-04-17 18:17:15,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-04-17 18:17:15,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-04-17 18:17:15,836 INFO L130 BoogieDeclarations]: Found specification of procedure P0
[2020-04-17 18:17:15,838 INFO L138 BoogieDeclarations]: Found implementation of procedure P0
[2020-04-17 18:17:15,838 INFO L130 BoogieDeclarations]: Found specification of procedure P1
[2020-04-17 18:17:15,839 INFO L138 BoogieDeclarations]: Found implementation of procedure P1
[2020-04-17 18:17:15,839 INFO L130 BoogieDeclarations]: Found specification of procedure P2
[2020-04-17 18:17:15,840 INFO L138 BoogieDeclarations]: Found implementation of procedure P2
[2020-04-17 18:17:15,840 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2020-04-17 18:17:15,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-04-17 18:17:15,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-04-17 18:17:15,842 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2020-04-17 18:17:16,291 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-04-17 18:17:16,292 INFO L295 CfgBuilder]: Removed 8 assume(true) statements.
[2020-04-17 18:17:16,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 06:17:16 BoogieIcfgContainer
[2020-04-17 18:17:16,296 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-04-17 18:17:16,297 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-04-17 18:17:16,298 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-04-17 18:17:16,303 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-04-17 18:17:16,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.04 06:17:14" (1/3) ...
[2020-04-17 18:17:16,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c1a0143 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 06:17:16, skipping insertion in model container
[2020-04-17 18:17:16,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:17:15" (2/3) ...
[2020-04-17 18:17:16,307 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c1a0143 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 06:17:16, skipping insertion in model container
[2020-04-17 18:17:16,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 06:17:16" (3/3) ...
[2020-04-17 18:17:16,309 INFO L109 eAbstractionObserver]: Analyzing ICFG safe032_tso.opt.i
[2020-04-17 18:17:16,319 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2020-04-17 18:17:16,319 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2020-04-17 18:17:16,325 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-04-17 18:17:16,326 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2020-04-17 18:17:16,353 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 18:17:16,353 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 18:17:16,353 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 18:17:16,354 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 18:17:16,354 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 18:17:16,355 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 18:17:16,355 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 18:17:16,355 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 18:17:16,356 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 18:17:16,356 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 18:17:16,357 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 18:17:16,357 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 18:17:16,357 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 18:17:16,358 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 18:17:16,358 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 18:17:16,358 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 18:17:16,358 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 18:17:16,359 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 18:17:16,363 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 18:17:16,363 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 18:17:16,364 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 18:17:16,364 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 18:17:16,369 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 18:17:16,370 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 18:17:16,370 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 18:17:16,370 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 18:17:16,373 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 18:17:16,373 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 18:17:16,374 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 18:17:16,374 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2020-04-17 18:17:16,399 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2020-04-17 18:17:16,416 INFO L375 AbstractCegarLoop]: Interprodecural is true
[2020-04-17 18:17:16,416 INFO L376 AbstractCegarLoop]: Hoare is true
[2020-04-17 18:17:16,417 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP
[2020-04-17 18:17:16,417 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-04-17 18:17:16,417 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-04-17 18:17:16,417 INFO L380 AbstractCegarLoop]: Difference is false
[2020-04-17 18:17:16,417 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-04-17 18:17:16,417 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-04-17 18:17:16,432 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow
[2020-04-17 18:17:16,434 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow
[2020-04-17 18:17:16,479 INFO L129 PetriNetUnfolder]: 2/66 cut-off events.
[2020-04-17 18:17:16,479 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2020-04-17 18:17:16,486 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place.
[2020-04-17 18:17:16,489 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow
[2020-04-17 18:17:16,513 INFO L129 PetriNetUnfolder]: 2/66 cut-off events.
[2020-04-17 18:17:16,514 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES.
[2020-04-17 18:17:16,514 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place.
[2020-04-17 18:17:16,516 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260
[2020-04-17 18:17:16,518 INFO L170 etLargeBlockEncoding]: Semantic Check.
[2020-04-17 18:17:18,136 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2365
[2020-04-17 18:17:18,137 INFO L214 etLargeBlockEncoding]: Total number of compositions: 53
[2020-04-17 18:17:18,141 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow
[2020-04-17 18:17:18,172 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states.
[2020-04-17 18:17:18,174 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states.
[2020-04-17 18:17:18,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2020-04-17 18:17:18,182 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-17 18:17:18,183 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-17 18:17:18,184 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-17 18:17:18,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-17 18:17:18,190 INFO L82 PathProgramCache]: Analyzing trace with hash -589225259, now seen corresponding path program 1 times
[2020-04-17 18:17:18,200 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-17 18:17:18,201 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505652976]
[2020-04-17 18:17:18,201 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-17 18:17:18,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-17 18:17:18,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-17 18:17:18,383 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505652976]
[2020-04-17 18:17:18,384 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-17 18:17:18,385 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-17 18:17:18,387 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079521361]
[2020-04-17 18:17:18,392 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states
[2020-04-17 18:17:18,392 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-17 18:17:18,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2020-04-17 18:17:18,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2020-04-17 18:17:18,415 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states.
[2020-04-17 18:17:18,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-17 18:17:18,473 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions.
[2020-04-17 18:17:18,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2020-04-17 18:17:18,475 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8
[2020-04-17 18:17:18,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-17 18:17:18,508 INFO L225 Difference]: With dead ends: 362
[2020-04-17 18:17:18,508 INFO L226 Difference]: Without dead ends: 298
[2020-04-17 18:17:18,510 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2020-04-17 18:17:18,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states.
[2020-04-17 18:17:18,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298.
[2020-04-17 18:17:18,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states.
[2020-04-17 18:17:18,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions.
[2020-04-17 18:17:18,584 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8
[2020-04-17 18:17:18,585 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-17 18:17:18,585 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions.
[2020-04-17 18:17:18,586 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states.
[2020-04-17 18:17:18,586 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions.
[2020-04-17 18:17:18,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2020-04-17 18:17:18,587 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-17 18:17:18,588 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-17 18:17:18,588 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-17 18:17:18,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-17 18:17:18,589 INFO L82 PathProgramCache]: Analyzing trace with hash -1086118353, now seen corresponding path program 1 times
[2020-04-17 18:17:18,589 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-17 18:17:18,589 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050193355]
[2020-04-17 18:17:18,589 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-17 18:17:18,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-17 18:17:18,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-17 18:17:18,726 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050193355]
[2020-04-17 18:17:18,726 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-17 18:17:18,726 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2020-04-17 18:17:18,727 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745017902]
[2020-04-17 18:17:18,729 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-04-17 18:17:18,729 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-17 18:17:18,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-04-17 18:17:18,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-17 18:17:18,730 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 3 states.
[2020-04-17 18:17:18,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-17 18:17:18,757 INFO L93 Difference]: Finished difference Result 217 states and 540 transitions.
[2020-04-17 18:17:18,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2020-04-17 18:17:18,758 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9
[2020-04-17 18:17:18,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-17 18:17:18,760 INFO L225 Difference]: With dead ends: 217
[2020-04-17 18:17:18,760 INFO L226 Difference]: Without dead ends: 217
[2020-04-17 18:17:18,761 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-04-17 18:17:18,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states.
[2020-04-17 18:17:18,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217.
[2020-04-17 18:17:18,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states.
[2020-04-17 18:17:18,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 540 transitions.
[2020-04-17 18:17:18,777 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 540 transitions. Word has length 9
[2020-04-17 18:17:18,777 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-17 18:17:18,777 INFO L479 AbstractCegarLoop]: Abstraction has 217 states and 540 transitions.
[2020-04-17 18:17:18,777 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-04-17 18:17:18,778 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 540 transitions.
[2020-04-17 18:17:18,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2020-04-17 18:17:18,779 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-17 18:17:18,779 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-17 18:17:18,780 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-17 18:17:18,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-17 18:17:18,780 INFO L82 PathProgramCache]: Analyzing trace with hash -954674037, now seen corresponding path program 1 times
[2020-04-17 18:17:18,780 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-17 18:17:18,781 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309199829]
[2020-04-17 18:17:18,781 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-17 18:17:18,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-17 18:17:18,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-17 18:17:18,864 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309199829]
[2020-04-17 18:17:18,867 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-17 18:17:18,867 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-17 18:17:18,868 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943170588]
[2020-04-17 18:17:18,868 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-04-17 18:17:18,868 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-17 18:17:18,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-17 18:17:18,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2020-04-17 18:17:18,869 INFO L87 Difference]: Start difference. First operand 217 states and 540 transitions. Second operand 4 states.
[2020-04-17 18:17:18,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-17 18:17:18,902 INFO L93 Difference]: Finished difference Result 136 states and 297 transitions.
[2020-04-17 18:17:18,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2020-04-17 18:17:18,903 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12
[2020-04-17 18:17:18,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-17 18:17:18,904 INFO L225 Difference]: With dead ends: 136
[2020-04-17 18:17:18,904 INFO L226 Difference]: Without dead ends: 136
[2020-04-17 18:17:18,905 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2020-04-17 18:17:18,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states.
[2020-04-17 18:17:18,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136.
[2020-04-17 18:17:18,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states.
[2020-04-17 18:17:18,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 297 transitions.
[2020-04-17 18:17:18,922 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 297 transitions. Word has length 12
[2020-04-17 18:17:18,923 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-17 18:17:18,923 INFO L479 AbstractCegarLoop]: Abstraction has 136 states and 297 transitions.
[2020-04-17 18:17:18,923 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-04-17 18:17:18,923 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 297 transitions.
[2020-04-17 18:17:18,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2020-04-17 18:17:18,925 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-17 18:17:18,925 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-17 18:17:18,928 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-17 18:17:18,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-17 18:17:18,929 INFO L82 PathProgramCache]: Analyzing trace with hash -1044268816, now seen corresponding path program 1 times
[2020-04-17 18:17:18,929 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-17 18:17:18,929 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359791625]
[2020-04-17 18:17:18,929 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-17 18:17:18,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-17 18:17:19,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-17 18:17:19,004 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359791625]
[2020-04-17 18:17:19,004 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-17 18:17:19,004 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-04-17 18:17:19,005 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651882109]
[2020-04-17 18:17:19,005 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-04-17 18:17:19,005 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-17 18:17:19,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-17 18:17:19,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2020-04-17 18:17:19,006 INFO L87 Difference]: Start difference. First operand 136 states and 297 transitions. Second operand 5 states.
[2020-04-17 18:17:19,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-17 18:17:19,038 INFO L93 Difference]: Finished difference Result 109 states and 243 transitions.
[2020-04-17 18:17:19,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-04-17 18:17:19,038 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15
[2020-04-17 18:17:19,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-17 18:17:19,039 INFO L225 Difference]: With dead ends: 109
[2020-04-17 18:17:19,039 INFO L226 Difference]: Without dead ends: 109
[2020-04-17 18:17:19,040 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2020-04-17 18:17:19,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states.
[2020-04-17 18:17:19,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109.
[2020-04-17 18:17:19,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states.
[2020-04-17 18:17:19,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 243 transitions.
[2020-04-17 18:17:19,044 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 243 transitions. Word has length 15
[2020-04-17 18:17:19,044 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-17 18:17:19,045 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 243 transitions.
[2020-04-17 18:17:19,045 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-04-17 18:17:19,045 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 243 transitions.
[2020-04-17 18:17:19,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2020-04-17 18:17:19,046 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-17 18:17:19,046 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-17 18:17:19,047 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-17 18:17:19,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-17 18:17:19,047 INFO L82 PathProgramCache]: Analyzing trace with hash 1052552835, now seen corresponding path program 1 times
[2020-04-17 18:17:19,047 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-17 18:17:19,048 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873839949]
[2020-04-17 18:17:19,048 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-17 18:17:19,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-17 18:17:19,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-17 18:17:19,171 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873839949]
[2020-04-17 18:17:19,171 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-17 18:17:19,171 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-04-17 18:17:19,172 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123098474]
[2020-04-17 18:17:19,172 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-04-17 18:17:19,172 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-17 18:17:19,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-17 18:17:19,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-04-17 18:17:19,173 INFO L87 Difference]: Start difference. First operand 109 states and 243 transitions. Second operand 5 states.
[2020-04-17 18:17:19,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-17 18:17:19,222 INFO L93 Difference]: Finished difference Result 174 states and 369 transitions.
[2020-04-17 18:17:19,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-04-17 18:17:19,222 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18
[2020-04-17 18:17:19,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-17 18:17:19,223 INFO L225 Difference]: With dead ends: 174
[2020-04-17 18:17:19,224 INFO L226 Difference]: Without dead ends: 136
[2020-04-17 18:17:19,227 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2020-04-17 18:17:19,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states.
[2020-04-17 18:17:19,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 109.
[2020-04-17 18:17:19,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states.
[2020-04-17 18:17:19,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 237 transitions.
[2020-04-17 18:17:19,234 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 237 transitions. Word has length 18
[2020-04-17 18:17:19,235 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-17 18:17:19,235 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 237 transitions.
[2020-04-17 18:17:19,235 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-04-17 18:17:19,235 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 237 transitions.
[2020-04-17 18:17:19,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2020-04-17 18:17:19,239 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-17 18:17:19,239 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-17 18:17:19,239 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-17 18:17:19,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-17 18:17:19,240 INFO L82 PathProgramCache]: Analyzing trace with hash -457536705, now seen corresponding path program 2 times
[2020-04-17 18:17:19,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-17 18:17:19,240 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288743916]
[2020-04-17 18:17:19,240 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-17 18:17:19,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-17 18:17:19,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-17 18:17:19,330 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288743916]
[2020-04-17 18:17:19,331 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-17 18:17:19,331 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-04-17 18:17:19,331 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573020376]
[2020-04-17 18:17:19,332 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-04-17 18:17:19,332 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-17 18:17:19,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-17 18:17:19,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2020-04-17 18:17:19,332 INFO L87 Difference]: Start difference. First operand 109 states and 237 transitions. Second operand 5 states.
[2020-04-17 18:17:19,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-17 18:17:19,399 INFO L93 Difference]: Finished difference Result 187 states and 381 transitions.
[2020-04-17 18:17:19,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2020-04-17 18:17:19,399 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18
[2020-04-17 18:17:19,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-17 18:17:19,400 INFO L225 Difference]: With dead ends: 187
[2020-04-17 18:17:19,400 INFO L226 Difference]: Without dead ends: 61
[2020-04-17 18:17:19,401 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72
[2020-04-17 18:17:19,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states.
[2020-04-17 18:17:19,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61.
[2020-04-17 18:17:19,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states.
[2020-04-17 18:17:19,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 114 transitions.
[2020-04-17 18:17:19,404 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 114 transitions. Word has length 18
[2020-04-17 18:17:19,404 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-17 18:17:19,405 INFO L479 AbstractCegarLoop]: Abstraction has 61 states and 114 transitions.
[2020-04-17 18:17:19,405 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-04-17 18:17:19,405 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 114 transitions.
[2020-04-17 18:17:19,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2020-04-17 18:17:19,406 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-17 18:17:19,406 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-17 18:17:19,406 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-17 18:17:19,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-17 18:17:19,406 INFO L82 PathProgramCache]: Analyzing trace with hash -1548207031, now seen corresponding path program 3 times
[2020-04-17 18:17:19,407 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-17 18:17:19,407 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396307904]
[2020-04-17 18:17:19,407 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-17 18:17:19,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-17 18:17:19,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-17 18:17:19,498 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396307904]
[2020-04-17 18:17:19,498 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-17 18:17:19,498 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-04-17 18:17:19,499 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420859063]
[2020-04-17 18:17:19,499 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2020-04-17 18:17:19,499 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-17 18:17:19,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2020-04-17 18:17:19,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2020-04-17 18:17:19,500 INFO L87 Difference]: Start difference. First operand 61 states and 114 transitions. Second operand 5 states.
[2020-04-17 18:17:19,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-17 18:17:19,524 INFO L93 Difference]: Finished difference Result 75 states and 136 transitions.
[2020-04-17 18:17:19,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2020-04-17 18:17:19,525 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18
[2020-04-17 18:17:19,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-17 18:17:19,526 INFO L225 Difference]: With dead ends: 75
[2020-04-17 18:17:19,526 INFO L226 Difference]: Without dead ends: 55
[2020-04-17 18:17:19,526 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2020-04-17 18:17:19,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states.
[2020-04-17 18:17:19,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55.
[2020-04-17 18:17:19,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states.
[2020-04-17 18:17:19,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 99 transitions.
[2020-04-17 18:17:19,529 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 99 transitions. Word has length 18
[2020-04-17 18:17:19,529 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-17 18:17:19,529 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 99 transitions.
[2020-04-17 18:17:19,529 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2020-04-17 18:17:19,529 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 99 transitions.
[2020-04-17 18:17:19,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2020-04-17 18:17:19,530 INFO L417 BasicCegarLoop]: Found error trace
[2020-04-17 18:17:19,530 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-04-17 18:17:19,530 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-04-17 18:17:19,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-04-17 18:17:19,531 INFO L82 PathProgramCache]: Analyzing trace with hash -1271535879, now seen corresponding path program 4 times
[2020-04-17 18:17:19,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-04-17 18:17:19,531 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445534663]
[2020-04-17 18:17:19,531 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-04-17 18:17:19,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-04-17 18:17:19,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-04-17 18:17:19,570 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445534663]
[2020-04-17 18:17:19,570 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-04-17 18:17:19,571 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-04-17 18:17:19,571 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236072991]
[2020-04-17 18:17:19,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-04-17 18:17:19,572 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-04-17 18:17:19,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-04-17 18:17:19,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-04-17 18:17:19,572 INFO L87 Difference]: Start difference. First operand 55 states and 99 transitions. Second operand 4 states.
[2020-04-17 18:17:19,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-04-17 18:17:19,584 INFO L93 Difference]: Finished difference Result 54 states and 98 transitions.
[2020-04-17 18:17:19,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2020-04-17 18:17:19,584 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18
[2020-04-17 18:17:19,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2020-04-17 18:17:19,584 INFO L225 Difference]: With dead ends: 54
[2020-04-17 18:17:19,585 INFO L226 Difference]: Without dead ends: 0
[2020-04-17 18:17:19,585 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-04-17 18:17:19,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2020-04-17 18:17:19,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2020-04-17 18:17:19,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2020-04-17 18:17:19,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2020-04-17 18:17:19,586 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18
[2020-04-17 18:17:19,586 INFO L84 Accepts]: Finished accepts. word is rejected.
[2020-04-17 18:17:19,586 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2020-04-17 18:17:19,587 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-04-17 18:17:19,587 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2020-04-17 18:17:19,587 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2020-04-17 18:17:19,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.04 06:17:19 BasicIcfg
[2020-04-17 18:17:19,591 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-04-17 18:17:19,594 INFO L168 Benchmark]: Toolchain (without parser) took 4726.30 ms. Allocated memory was 146.3 MB in the beginning and 245.9 MB in the end (delta: 99.6 MB). Free memory was 102.8 MB in the beginning and 189.9 MB in the end (delta: -87.1 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB.
[2020-04-17 18:17:19,594 INFO L168 Benchmark]: CDTParser took 1.38 ms. Allocated memory is still 146.3 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB.
[2020-04-17 18:17:19,595 INFO L168 Benchmark]: CACSL2BoogieTranslator took 780.94 ms. Allocated memory was 146.3 MB in the beginning and 204.5 MB in the end (delta: 58.2 MB). Free memory was 100.8 MB in the beginning and 161.2 MB in the end (delta: -60.4 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB.
[2020-04-17 18:17:19,596 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.14 ms. Allocated memory is still 204.5 MB. Free memory was 161.2 MB in the beginning and 159.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB.
[2020-04-17 18:17:19,597 INFO L168 Benchmark]: Boogie Preprocessor took 30.84 ms. Allocated memory is still 204.5 MB. Free memory was 159.3 MB in the beginning and 158.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB.
[2020-04-17 18:17:19,598 INFO L168 Benchmark]: RCFGBuilder took 529.02 ms. Allocated memory is still 204.5 MB. Free memory was 158.0 MB in the beginning and 136.3 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB.
[2020-04-17 18:17:19,598 INFO L168 Benchmark]: TraceAbstraction took 3293.65 ms. Allocated memory was 204.5 MB in the beginning and 245.9 MB in the end (delta: 41.4 MB). Free memory was 135.6 MB in the beginning and 189.9 MB in the end (delta: -54.3 MB). There was no memory consumed. Max. memory is 7.1 GB.
[2020-04-17 18:17:19,610 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 1.38 ms. Allocated memory is still 146.3 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 780.94 ms. Allocated memory was 146.3 MB in the beginning and 204.5 MB in the end (delta: 58.2 MB). Free memory was 100.8 MB in the beginning and 161.2 MB in the end (delta: -60.4 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB.
* Boogie Procedure Inliner took 64.14 ms. Allocated memory is still 204.5 MB. Free memory was 161.2 MB in the beginning and 159.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 30.84 ms. Allocated memory is still 204.5 MB. Free memory was 159.3 MB in the beginning and 158.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 529.02 ms. Allocated memory is still 204.5 MB. Free memory was 158.0 MB in the beginning and 136.3 MB in the end (delta: 21.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 3293.65 ms. Allocated memory was 204.5 MB in the beginning and 245.9 MB in the end (delta: 41.4 MB). Free memory was 135.6 MB in the beginning and 189.9 MB in the end (delta: -54.3 MB). There was no memory consumed. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: PetriNetLargeBlockEncoding benchmarks
LbeTime: 1.7s, 77 ProgramPointsBefore, 32 ProgramPointsAfterwards, 69 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 1 ChoiceCompositions, 648 VarBasedMoverChecksPositive, 37 VarBasedMoverChecksNegative, 12 SemBasedMoverChecksPositive, 36 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 2365 CheckedPairsTotal, 53 TotalNumberOfCompositions
- PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable
For all program executions holds that call of __VERIFIER_error() unreachable at this location
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.1s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 160 SDtfs, 101 SDslu, 231 SDs, 0 SdLazy, 86 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 27 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 116 NumberOfCodeBlocks, 116 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 108 ConstructedInterpolants, 0 QuantifiedInterpolants, 4188 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be correct!
Received shutdown request...